Alumina Filter Medium is widely used in molten aluminum filtration systems to support stable melt flow, improve impurity interception, and optimize filtration performance inside deep-bed filtration equipment and filter chambers.
Manufactured from high-purity alumina materials, the filter medium offers excellent thermal stability, high mechanical strength, good chemical resistance, and reliable performance under molten aluminum operating conditions.
The alumina filter medium is commonly used in aluminum casting lines, foundries, and molten aluminum treatment systems requiring stable filtration efficiency and long service life.
Specifications
Dimensions
| Category | Model (mm) | Dimension Deviation (mm) |
|---|---|---|
| Alumina Ball 1/2″ | φ13 | ±1.0 |
| Alumina Ball 3/4″ | φ19 | ±1.5 |
| Alumina Gravel 1# | 2~4 | — |
| Alumina Gravel 2# | 3~6 | — |
Chemical Indicators
| Name | Al₂O₃ | SiO₂ | MgO | Fe₂O₃ |
| Alumina Ball 1/2″ | 93–98% | ≤5% | ≤1% | ≤1% |
| Alumina Ball 3/4″ | 93–98% | ≤5% | ≤1% | ≤1% |
| Alumina Gravel 1# | 98–99.8% | ≤1% | ≤1% | ≤0.2% |
| Alumina Gravel 2# | 98–99.8% | ≤1% | ≤1% | ≤0.2% |
Key Features
- High alumina content for stable performance
- Excellent thermal shock resistance
- Good resistance to molten aluminum corrosion
- Stable physical structure during operation
- Suitable for continuous molten aluminum filtration
- Long service life and low maintenance frequency
- Compatible with deep-bed filtration systems
Product Advantages
Stable Filtration Performance
The alumina media structure helps support uniform molten aluminum flow and improve impurity interception efficiency.
High Temperature Resistance
Suitable for long-term use under molten aluminum operating temperatures.
Good Mechanical Strength
The alumina balls and gravel maintain structural stability during filtration operation and material loading.
Excellent Chemical Stability
High-purity alumina composition helps improve corrosion resistance and reduce contamination risk.
Flexible Combination
Different particle sizes can be combined according to filtration system design and flow requirements.
